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inn [45]
3 years ago
9

20questions.%7D" id="TexFormula1" title="\text{This is for a school project. I just need help on these two questions.}" alt="\text{This is for a school project. I just need help on these two questions.}" align="absmiddle" class="latex-formula">
What shape do ice crystals have? How does hydrogen bonding cause that shape?

\text{Thank you!}
Chemistry
1 answer:
BigorU [14]3 years ago
5 0

Answer:

Water molecules in the solid state, such as in ice and snow, form weak bonds (called hydrogen bonds) to one another. These ordered arrangements result in the basic symmetrical, hexagonal shape of the snowflake.

Explanation:

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What is a Cilla ? What does it look like ? (In drawing )
vova2212 [387]

a short microscopic hairlike vibrating structure found in large numbers on the surface of certain cells.

Explanation:

either causing currents in the surrounding fluid, or, in some protozoans and other small organisms, providing propulsion.

3 0
4 years ago
An aqueous solution of sodium thiosulfate releases heat when it crystallizes. What would happen when sodium thiosulfate crystals
rusak2 [61]

Answer:

An excellent experiment is to heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. ... Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.

7 0
3 years ago
Calculate the solubility of ( = ) in moles per liter. Ignore any acid–base properties. s = mol/L Calculate the solubility of ( =
BaLLatris [955]

This is an incomplete question, here is a complete question.

Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties.

CaCO₃, Ksp = 8.7 × 10⁻⁹

Answer : The solubility of CaCO₃ is, 9.33\times 10^{-5}mol/L

Explanation :

As we know that CaCO₃ dissociates to give Ca^{2+} ion and CO_3^{2-} ion.

The solubility equilibrium reaction will be:

CaCO_3\rightleftharpoons Ca^{2+}+CO_3^{2-}

The expression for solubility constant for this reaction will be,

K_{sp}=[Ca^{2+}][CO_3^{2-}]

Let solubility of CaCO₃ be, 's'

K_{sp}=(s)\times (s)

K_{sp}=s^2

8.7\times 10^{-9}=s^2

s=9.33\times 10^{-5}mol/L

Therefore, the solubility of CaCO₃ is, 9.33\times 10^{-5}mol/L

4 0
3 years ago
If 3.75 moles of aluminum react, how many moles of sulfur are needed?
aliya0001 [1]

Answer:(A) 0.70 mol

Explanation:

5 0
3 years ago
Geothermal energy helps to
disa [49]

Answer:A

Explanation:

4 0
4 years ago
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